The Dormer Pramet A110 1/2 Inch HSS Straight Shank Long Series Drill DIN 340 is built for depth, durability, and dependable metalworking performance. With a long-length design, this drill bit reaches into thick materials and deep cavities where standard bits struggle, while maintaining strong rigidity and true runout for clean, accurate holes.

• 118-degree conventional point for confident starts and reduced walking on tough metals. The tip geometry is designed to bite quickly and stay stable, making hole entry smoother even in tougher workpieces.
• Steam oxide finish minimizes material sticking to the cutting edge, promoting faster chip clearance and cooler operation. This reduces built-up edge and helps extend tool life on repetitive drilling tasks.
• Long length series tailored for drilling deeper holes and applications where extended reach is essential. Perfect for automotive components, electrical enclosures, and fabrication work where clearance matters.
• Premium HSS material delivers dependable performance across a range of common metals—steel, aluminum, and stainless steel—without sacrificing rigidity or accuracy.
• Straight shank design ensures compatibility with standard chucks and holders, providing consistent grip and minimal runout in both handheld and machine drilling setups.
• DIN 340 specification guarantees interchangeability with other DIN-standard drill bits and ensures predictable sizing and fit in professional tooling environments.
• Versatile application suitable for a variety of hand-held and machine drilling tasks, making it a staple in metalworking shops, maintenance garages, and hobbyist setups alike.

Who benefits most from the A110 long series drill? technicians and fabricators who routinely work with thicker materials or require extended reach, hobbyists tackling vintage metal projects, and shop floors where consistency, durability, and repeatable accuracy are non-negotiable.

Practical uses include drilling through steel plates, aluminum extrusions, and stainless components where deeper hole access is needed. The bit’s re-grindable tip means you can restore a sharp edge multiple times, preserving productivity and reducing tool downtime. Pair it with a compatible drill press or handheld drill to maximize precision—the straight shank and robust HSS core keep your holes true while you push for deeper performance.

Tips for best results: select appropriate feed rates for the material, keep the workpiece securely clamped, use adequate lubrication to reduce heat buildup, and re-sharpen the cutting edge as needed to maintain clean entry and exit finishes. With proper care, this drill bit becomes a reliable workhorse for demanding metalworking projects.